Storage tank



FIG. 1 is a top perspective view of the first embodiment showing the storage tank.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a left side elevational view thereof.

FIG. 4 is a right side elevational viewer thereof.

FIG. 5 is a front elevational view thereof.

FIG. 6 is a back elevational view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof.

FIG. 9 is a top perspective view thereof.

FIG. 10 is a bottom perspective view of the second embodiment of the storage tank.

FIG. 11 is a left side elevational view thereof.

FIG. 12 is a right side elevational view thereof.

FIG. 13 is a front elevational view thereof.

FIG. 14 is a back elevational view thereof.

FIG. 15 is a top plan view thereof; and,

FIG. 16 is a bottom plan view thereof. 

CLAIM What is claimed is the ornamental design for a storage tank, as shown and described. 